YK

Yojiro Kojima

Canon: 8 patents #7,260 of 19,416Top 40%
Overall (All Time): #641,290 of 4,157,543Top 20%
8
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
10125283 Ink, ink cartridge, and ink jet recording method Yuko Negishi, Yoshihisa Yamashita 2018-11-13
8992674 Ink, ink cartridge and ink jet recording method Masayuki Ikegami, Masashi Ogasawara, Tetsu Iwata, Takashi Saito, Masashi Tsujimura 2015-03-31
8764178 Ink jet recording method and ink jet recording apparatus Yukako Tamanuki, Shogo Takemoto, Kumiko Mafune, Satoshi Kudo, Yoshio Kinoshita +1 more 2014-07-01
8668321 Ink jet recording method and ink jet recording apparatus Yukako Tamanuki, Shogo Takemoto, Satoshi Kudo, Yoshio Kinoshita, Kumiko Mafune 2014-03-11
8328346 Ink jet recording method and ink jet recording apparatus Satoshi Kudo, Kumiko Mafune, Yoshio Kinoshita, Yukako Tamanuki, Shogo Takemoto 2012-12-11
7784367 Method of gas resistance test for image and ink set Hiroyuki Ogino, Takayuki Ishikawa, Takao Yamamoto 2010-08-31
7615113 Ink, ink jet recording method, ink cartridge, recording unit, and ink jet recording apparatus Yoshihide Aikawa, Eiichi Nakata 2009-11-10
7566362 Ink, ink jet recording method, ink cartridge, recording unit and ink jet recording apparatus Otome Mori, Kuniaki Fujimoto, Jun Yoshizawa, Daiji Okamura 2009-07-28